Trace 3, precise and secure tracing. - Dimensions : W 310 x D 385 x H 203 mm - Weight : 9 kg - Voltage : 230V - 50Hz The frame is not distorted as tightening is automatic with constant pressure Perfect operator support through meaningful and clear help menus on the current task Tracing on both sides, right only or left only In the case of one-sided tracing, you are prompted to input the width of the bridge 3D tracing and determination of the groove angle and bevel length Tracing of demo lenses Three tracing speeds quick, slow, very slow (only automatic) Adjustable tracing speed for difficult frames